Which answer best describes the verb tenses in the sentence?

By the time we got to Austin, the puppy falls asleep in the back of the van.

A.
The verb tenses shift.

B.
The verb tenses are consistent.

Question

Which answer best describes the verb tenses in the sentence? 

By the time we got to Austin, the puppy falls asleep in the back of the van.
 
 A.
The verb tenses shift.
 
 B.
The verb tenses are consistent.

anonymous · Answer

A. the verb tenses shift. 
it goes from past to present. I believe, not one hundred percent

anonymous · Answer

@FoxofLaurel Thanks so much! Happy April Fools :)